Oval|Natural|GIA

0.55ct F SI1 Oval Natural Diamond

GD • F/SI1 • GIA 6551590657

Certificate GIA 6551590657

Diamond specifications and retailer prices

From £537 GBP
As of November 6, 2026
Save £729 GBP (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,172 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.55ct natural oval diamond

This 0.55ct natural oval sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551590657. Listed at 19 retailers as of November 4, 2026, with a 136% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.55
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551590657
Dimensions6.62 × 4.67 × 2.85 mm
L/W Ratio1.42
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
6.62 mm4.67 mm0.55 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551590657
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £845 GBP|Low: £537 GBP|High: £1,284 GBP|Avg: £816 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£537 GBP
Retailer 5£579 GBP
Retailer 7£651 GBP
Retailer 8£751 GBP
Retailer 3£802 GBP
Retailer 1£845 GBP
Retailer 2£895 GBP
Retailer 4£1,068 GBP
Retailer 6£1,266 GBP

37 data points across 9 retailers

19 retailers£537 GBP to £1,266 GBP

B+
Cheapest Retailer
-
£537 GBP
Final sale: no returns
B+
Retailer 2
-
£616 GBP
View
Retailer 3
-
£628 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£628 GBP
View
B+
Retailer 5
-
£628 GBP
View
B+
Retailer 6
-
£636 GBP
View
B+
Retailer 7
-
£651 GBP
View
B
Retailer 8
-
£704 GBP
View
B
Retailer 9
-
£724 GBP
View
B
Retailer 10
-
£751 GBP
View
B
Retailer 11
-
£777 GBP
View
B
Retailer 12
-
£802 GBP
View
B
Retailer 13
-
£845 GBP
View
B
Retailer 14
-
£852 GBP
View
B
Retailer 15
-
£895 GBP
View
B
Retailer 16
-
£1,068 GBP
View
B
Retailer 17
-
£1,118 GBP
View
B
Retailer 18
-
£1,266 GBP
View
Most Expensive
NZ Jewellers
69085dbf-730e-46a2-8ae9-a9598952930b · Nov 5
£2,172 GBP
$2,907 USD
View
Price under review
18 more retailers have this diamond
Prices start from £537 GBPSave up to £729 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
0.55ct Oval
£537 GBP